P1148, P1283 engine codes 2005 Nissan Armada Problems

Question

My armada is experiencing reduced power, shaking in steering wheel when reaches certain speed, SEVERELY reduced gas mileage, rough idle and drive. Was throwing codes for misfire and coil packs, fix that. Ran great for about two days then all this started and throws P1148 and P1283 codes, what do I do? How do I pin point exactly what needs to be changed/fixed? 2005 Nissan Armada

Answer 1

Sometimes it's difficult to know exactly what the problem is. The code point to a bad Air Fuel Ratio Sensor 1, but since you just replaced the coils, I recommend driving your vehicle for a few more days with high octane gas. If the problem persists, then you need to replace the Air Fuel Ratio Sensor 1 Bank 2.

P1148 NISSAN Code - Closed Loop Control Function Bank 1
Read more: https://www.autocodes.com/p1148_nissan.html

P1283 NISSAN Code - Air Fuel Ratio Sensor 1 Lean Shift Monitoring Bank 2
Read more: https://www.autocodes.com/p1283_nissan.html